The branching point on a cladogram represents a common ancestor. A cladogram is a diagram used in cladistics to show relations among organisms. However it is not an evolutionary tree since it does not show how ancestors are related to descendants, nor does it show how much they have changed.
Answer:
1. False
2. False
3. True
Explanation:
1. Compliance is the capacity of a container to increase in size to allow it hold more content. Blood vessel, arteries and veins expand (increase in volume) to be able to accommodate a surge in blood flow, which is as a result of an increase in pressure of the blood from the heart pumping of the blood
Therefore, compliance in the tendency for blood vessel volume to increase as the blood pressure <em>increases</em> not decrease
The statement is false
2. A large compliance is indicative of being highly sensitive to changes in pressure
Compliance, C = ΔV/ΔP
From the above equation, a blood vessel with a large compliance, exhibit a large increase in volume when the increase in pressure is small
Therefore, the statement 'Blood vessels with a large compliance exhibit a small increase in volume when pressure increases a small amount; is false
3. The compliance of the vein ranges from 10 to 20 times (30 times in some literature) greater than arteries. A factor which can be affected by the vascular smooth muscle contraction or relaxation
Therefore, the statement, 'venous compliance is approximately 24 times larger than arterial compliance, so as venous pressure increases the volume of veins greatly increases' is true
more panthers were born than died. more panthers were born than died
The population of the Florida panther once dwindled to below two dozen, but it has since rebounded to more than 200
<h3>What is the panther population in Florida ?</h3>
Today there are only 120 to 130 Florida panthers left in the wild. They are found in southern Florida in swamplands such as Everglades National Park and Big Cypress National Preserve
- Florida's largest wild cat species, the panther is critically endangered, but has been making a slow and steady comeback since numbers sunk to just 20 individuals in the 1970's. As of 2021, most estimates place the present day population at around 200.
- By far the greatest threats to Florida panthers are habitat loss, fragmentation and degradation — all driven by Florida's burgeoning human population and the developments and highways that accommodate it.
Learn more about Florida Panther here:
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Answer:
The ozone layer in the stratosphere blocks out the sun's deadly ultraviolet rays. It acts as our planet's natural sunblock.
